Step TTS 2

Name: Step TTS 2
Author: StepFun

ttsproprietary

End-to-end TTS with 11 emotions, 17 styles, 3 languages (Mandarin, Cantonese, Sichuan dialect, Japanese). 10s audio voice cloning.

Capabilities

Show unsupported (13)

No supported capabilities recorded.

Model IDstep-tts-2

ProviderStepFun

Creatorstepfun

Licenseproprietary

Statusactive

Typetts

Input modalitiesaudio, text

Output modalitiesspeech

Open weightNo

Parameters—

Architecture—

Max chars—

Sample rate—

Voices—

Languages—

Release date—

Sourceofficial

audio speechPOST

https://api.stepfun.com/audio-speech

2.8 元／万字符 (CNY)

Model	Max chars	Sample rate	Voices	Languages
Step TTS 2	—	—	—	—
Step TTS Mini	—	—	—	—

GET/v1/models/stepfun/step-tts-2